Feed stop



H. *L* WlLCOX! FEED STGR APPLIcATwN man Nov. 19. ma.

Patented Dec. A5, 1922.

EETS-SHEET l.

verz Zw" zur# g, f

H. L. WILGOX.

FEED STO?.

APPLlcATlou msn'uov. 19. 1919.

Patented Dec. 5, 1922..

3 SHEETS-SHEET 2.

R. L. wlLcox, FEED STOP.

APPLICATION FILED NOV. I9, 1919.

Patented Deo. 5, 1922,

3 SHEETS-SHEET 3- www@ Patented Dec. 5, i922..

sra-ras g A 1,437,578v en ijsnr critics,

nicnrian IJEsTEE vrincox, or wnTEEBUnY, CONNECTICUT, fissIGNoE roTHE WATER- Euiw EnnnEI. EoUNnEY lAND in aCnIN-E Company, or WATERBURY, CCNNECTI- CUT, n CoaroEaTIoN 0E CONNECTICUT.

FEED STOP.

Application filed November 19, 19l9. Serial No. 339,100.

To @ZZ whom t may concer Be it known that I, RICHARD' Lns'rnn lllincox, a citizen of the United States, residing at lVaterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful improvements in Feed Stops, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in feed stops having particular reference to mechanism for limiting the extent of movement of a length' of metal, orother material, being moved either manuallyor by mechanical means; so as to determine one dimension of a blank to be cut therefrom.

As herein shown and illustrated l have applied my invention to an upsetting machine, that is, a machine where the blanks after being cut from a length are upset, either throughout their entire length or only a portion thereof.

lt is the object of this invention, among' other things, to provide a feed stop that will have a movement variable in length,

parallel with the path of travel of the material iii the machine, which may be given a circular movement in relation thereto if desired, its position. in relation to other mechanism of the machine varied, or it may be so controlled as to occupy a lined position.

iside from these, and other desiiable objects, such as simplicity and compact ness of structure, ease of adjustment, etc. it is so designed that the source of power for its operation is derived from other movable parts of the machine that are essential to the operation thereof. i

To these, and other ends, my invention consists in the feed stop having certain details of construction and combinations of parts, as will be hereinafter described, and incre particular-lv pointed out in theclaims.

Referring to the drawings, in which like numerals of reference designate like parts in the several figures;

Figure l is a fragmentary plan view of a portion of an upsetting machine with `my improved mechanism shown in connection therewith Figure 2 is a fragmentary side elevation of the parts as shown in Figure l with the cain and adjacent elements showny in such position las will impart the maximum parallel motion to the feed stop; lFigure 3 is a side elevation of a portion ot my improved mechanism illustrating the relative position of the cam and its adjacent elements whereby the length of the movement of the feed stop is between itsy maximum and minimum; Figure i is a similar view with the feed stop held againstendwise movement; and Figure 5 is an enlarged sectional view of the slide block and adjacent parts, taken uppn line 5-5 of Figure l. i i

ln upsetting machines,- soinetimes known as heading machines, a wire rod is either automatically or manually fed into the machine, a length, generally described as a blank, cut therefrom, which is then moved into line with the upsetting mechanism, if not already there and subjected to pressure in or between dies one usually being stationary and the other movable. This pressure upsets the blank in the desired manner after which it is ejected from the machine. Mechanism of this type is well known inthe art rand therefore l have only shown so much thereof as is essential to a clear un` derstandiiig of my invention.

ln the drawings, the numeral l() designates the bed of the machine supported upon suitable legs 24:, in which is secured a die holder lll having a stationary die l2 therein; 13 is the gate which has a reciprocating movement in the body l0 toward and away from the die holder ll and fixed on ther forward end of which is the die holder ld carrying a punch l5 therein. The punch rl5 and the stationary die l2 have formed in their meeting faces recesses or depressions to accommodate the flow of the metal during its pressure therebetween, and in the machine illustrated these recesses are semi-circular as at 16 so that when the faces thereof are in contact with each other the metalblank therebetween will be formed into a ball. lt will be understood, however, that this shape and form is merely for the purpose of illustration as such recesses` may be so shaped as to form a head upon a blank, or the blank upset in many other ways.

Mounted on a rotating shaft 17 is a cam 1S, which in some types oi' machine. is a spur gear, the tace ot the gear being utilized to form the cam.

The wire rod 19 is ted, either manuallv or by mechanism into the machine in the feed line designated 2O so that the inner end thereoi projects in iront ot a line across the iace oi' the die 12, at which time the knife 21 on the end oi' the cut-o bar 22 which moves in a. path at right angles to the line of wire feed, cuts ofi the projecting; portion ot the wire, forms a blank therefrom which is transferred to the upsetting line, designated 23 and is there held until the gate moves forward and the blank is engaged by the die 12 and punch 15 at which time the cutter bar r22 and knite 2l. are withdrawn and the blank acted upon by said punch and die.

All ot' the mechanisms above described are old in the art and constitute no part ot my present invention which relates particularly to the mechanism tor limiting the ieed oi the wire so as to determine the length ot the blank that is to be severed therefrom by the knite 21.

@ne 'function ot my linvention is to automatically move the feed stop toward and a vvay trom the plane of the tace ot the die 1Q so as to allow the out oil bar 22, which holds the knife. to advance and cut off the required length there-trom to Yform the blank and carry it over to the uitiisetting line. wit-hout interferingY with the ieed stop.

in certain lengths oi blanks it is .not necessarj,7 that motion should be given. to the :ieed stop. as there is ample room tor the knife Q1 and bar 22 to clear the feed stop.

This, however, is not true it the blank is comparatively short because iiE the teed stop is not movable away 'from the end ot the wire, the eut-oil bar would have to be reduced to such si: i as to clear the feed stop and in doing` this it will become so weakened as not to stand the requisite strain and pressure to cut oit the blank. rlhereiiore7 l have provided a leed stop that will permit the linger thereon to move toward and away from the plane oi the tace ot the die 12 to a predetermined position 'for the wire to be :ted against it. and then betere the blank is severed therefrom. moved away a. sutiicient distance to allow the cutter bar to pass in 'liront thereof. have provided means wnereby the extent ot this movement of the :Feed stop linger may be'varied or it -i ay be held against relative movement and can he moved in a circular path for the purposes Aiereatter described.

Fixed in one end ot the body l() are the studs upon which is mounted a slitte 26 which has a movement toward and awa;Y from said body. therein is an adjusting` sleeve 9?.

and threadably mounted` Supported near one end by the bushing 28 in the body 10 and near the other end in the sleeve Z7, is the shaift 29 having` ilixed on its inner end the linger stop El() preferably provided with hardened button 31. the axis oi which button is normally coincident with that ci' theieed line 9.0.

ri nut 32 on the end of the shaft 29 contacts with one iiace ot the linger and prevents endwise movement thereof upon said shaft.

@n the end oi the shaft 29 opposite the nger 30 is a link block 33, to which al handle 35 is pivotally connected by the stud Si? and against which bears the tree end ot the spring- 36, which is also mounted upon the shatt- 29, and held against relative Inovement in relation to the block 33 by the dowel pir. 37. l-cth the block and spring' QG are held against endwise movement on the shaft y the nut 3S threaded thereon.

Adjustably secured to the slide 2G by the bolts 39 is a lock plate 40 havino' two notches 41-1 angl in its outer end, the 'loriner oi said notches being sl` 'htly deeoer than the latter.

lllhen the axisot the button 31 is coincident with the wire line 20, the handle 35 is held in the notch l1 by the spring' 36 so that no rotary movement can be imparted to the iii 30, but it'it is desired to move said a circular path7 the handle 35 is rotated upon its pivot inountii the pressure oi? the spring` il@ an d the shaft then rotated until the handle is moved into the recess 42 where it is then again held z [against movement by pressure ot the spring' Ordinarily tais rotary more ient ot' the linger is not required but tor the purpose of adjustment ot mechanisms and for manual feeding it is desirable and is especially advantageous ior purposes et ejectingv the short end ot' the rod just betere a new rod is presented. the last end oit the wire does not furnish suilicient metal tor a Yifull length blank it is preferable that this short endbe ejected. otherwise it liable to break either the .knife or dies and iu any rase u A,ll produce an imperfect product. lilith a 'feed stop that cannot be moved out oi the path of the wire iced it is impossible to eject this short end. Now7 by the means herein provided. when the end of the wir i rod is about to be presented to the cut-oil' knite the operator stops tue machine. the 'ieeld stop threugh manipulation oit the handle 35 out ot the path oi the wire iced, moves the rod manually suiiiciently to eject tie short end ot the previous rod.` then returns the Finger to its operative position. brings the enduoi the wire against the button 31, and then st..rts machine with a blank oi the proper length whereby all danger or" breakingthe parts is eliminated.

Secured to the body adjacent to the studs 25 is the bracket i8 within which is mounted llO the rock shaft 44, having fixed on one end thereoiI the lever 45 and on the other end the cam 46. Motion is imparted to said rock shaft 44 from the cam 18 through the rock lever 47, which is rotatably mounted upon a stud 48 fixed in the bed l0 having a cam roll 49 upon one arm thereof which lies withinv Rotatably mounted upon studs 56 fixed,

in the slide 26 are the cam rolls 57 which n engage the operative face of the. cam 46 and by reason thereof transmit a reciprocatory motion to the slide 26 toward and away from the bed l() and carrying with it the shaft 29, this motion providing the parallel movement of the shaft 29 and the movement of the finger 30 toward and away from the plane of the face of the die l2.

rFhe periphery of thelcam 46 is constructed with two concentric portions 58 and 59, the former having a greater radius than the latter and these two concentric portions beingconneeted by the curved faces 60. rlhe relative position of this cam about the aXis of the shaft 44 determines the length of the parallel movement of the linger 30 or whether it has any parallel movement at all, and this radial position is in turn determined by the relative position of the outer end of the lever 45 with the connection 43, this adjustment being obtained through the manipulation of the nuts 55 whereby the swivel block 53 is caused to move along the said rod 5l, so that it will be moved into and held against movement in its adjusted positions. of the cam 4,6 are shown in Figures 2, 3 and 4 of the drawings.

In Figure 2, the maximum parallel motion will be given to the linger because the cam rolls 57 ride from the high portion 58 to the low portion 59 of said cam thereby obtaining` the extreme movement thereof.

In Figure 3 a considerably, shorter parallel movement is derived by reason of the fact that said cam rol-ls do not ride from the high to the low portions of said cam, the movement of said cam being suoli that this is not possible. While in Figure 4 one of the cam rolls is always in contact with the high portion 58 of the cam and the other with the low portion 59 thereof so that no parallel motion whatever is imparted to the linger 30.

Three of the relative positions The two `ei'rtreme positions of the cam 46 and lever45 in each ofthese views is shown, one by full lines and the other by broken lines.

rThere are minor changes and alterations that can be made within my invention, aside from those herein suggested, and l would therefore have yit understood that l do not limit myself to the exact construction herein shown `and described, but claim all that falls fairly within the spirit and scope of my. invention.l

laving described my invention, what l claim as new and desire to secure by Letters Patent, is: y

1 In mechanism ofthe character described, wherein material is fed therein at one place, pieces successively cut from the end thereof and the out piecestransferred to another place, the combination therewith of'y means for limiting the movement of said material at its feed in line while the cut oli` and transfer mechanisms are withdrawn, comprising an element movable in a line substantially parallel with the path of move.

ment of said material and in timed relation with said cut ott and transfer mechanisms, said feed limiting means being stationary in the stop` position at the time the material is brought into contact therewith.

2. In a header or upsetting machine wherein the material to be operated upon is fed therein at one place, pieces successively cut from the end thereof and the cut pieces transferred to another place, the combination therewith of means for limiting the feed movement of said material at its feed in line while the out off and transfer mechanisms are withdrawn, comprising an element movable in a line substantially parallel with the path of movement of said material and in timed relation with said cutoff and transfer mechanisms, and means for varying the length of said parallel movement.

3. ln a mechanism of the `character'described, wherein material is fed therein and pieces successively cut from the yend thereof, the combination therewith of means for limiting the feed movement of said material while `the cnt of( mechanism is withdrawn, comprising an element movable in 'a line substantially parallel with the path of movement of said material; and `means whereby the length of said parallel motion may be varied or said element heldin a fixed position.

4. ln mechanism of the character described, the combination with a stop for limiting the movement of material therein; of means for moving said stop into and out of its stop position between successive feedingfmovements of said material, said means being actuated through a cam; and means for adjusting the relative position of said cam` so as to vary the eXtent of movement of said stop means.

5. ln mechanism of the character described, the combination with a stop for limiting the movement of material therein; of means for moving' said stop into and out of its stop position between successive feeding movements of said material, said means being' actuated through a cam; and means for adjusting the relative posit-ion of said cam so as to vary the extent of movement of said stop means, or to hold the same against movement.

G. ln a device of the character described, the combination with a feed stop for limiting the movement of materialA therein; of means for imparting a reciprocatory movement thereto, said means comprising' a rock member; a cam connected With said rock member; means for actuating said n rock member; an operative connection between said cam and said feed stop; and means for varying' the operative position of said' rock member about its axis so as to impart a stroke of variable length to said feed stop.

7. In a device of the character described, the combination With a stop finger; of al shaft connected therewith; a member connected with said shaft; and means for reciprocatingsaid member, said means comprising a cam havingan operative connection with parts on said member; means for imparting' movement to said cam; and means for adjListing` the relative positions of said shaft and member.

S. ln a device of the character described, the combination With a stop element; of a shaft connected therewith; a slide connected with said shaft; means for varying the rotative positions of said shaft and slide; a rock member mounted upon a member independent of said member and slide; cam connected with said rock member having' en- `sagement with parts upon said slide so that movement will be imparted to said slide;

`and means for actuating said rock member.

9. ln a device of the character described, the combination with a stop member to limit the feed movement of material therein; of means for imparting a reciprocatory movement thereto, said means comprising' a slide, a rock member mounted upon a part independent of said slide, a cam connected With said rock member, and elements connected with said slide and having contact Wit-h said cam; and means for varying the relative position of said cam and elements.

10. ln a device of the character described, the combination with a stop member to limit the feed movement of material therein; of means for imparting' a reciprocatory movement thereto, said means comprising a slide, a rock member mounted upon a part independent of said slide, a cam connected with said rock member, and elements connected With said .slide and having,` contact with said cam, means for varying the relative position of said cam and elements; and means connected with said stop member for rotating the same in relation to said slide.

ll. In a device of the character described, the combination with a stop member to limit the feed movement of material therein; of means for imparting a reciprocatory movem-ent thereto, said means comprising a slide, a rock member mounted upon a part independent of said slide, a cam connected with said rock member, and element-s connected With said slide and having Contact With said cam; means for varying' the relative position of said cam and elements; means connected with said stop member for rotating' the same in relation to'said slide; and means for holding' said stop member against accidental movement in its extreme rotary positions. v'

l2. In a device of the character described, the combination With a stop member to limit the feed movement of material therein; of means for imparting; a reciprocatory movement thereto, said means comprising a slide. a rock member mounted upon a part independent of said slide, a cam connected With said rock member, and elements connected With said slide and having' contact with said cam; and means connected With said stop member for rotating' the same in relation to said slide, said means comprising a handle connected with said stop member, and a member connected with said slide for holding said handle in predetermined positions,

13. ln a device of the character described, the combination With a stop member to limit the feed movement of material therein; of means for imparting a reciprocatory movement thereto, said means comprising a slide, a rock membery mounted upon a part independent of said slide, a cam connected With said rock member, and elements connected With said slide and having contact with said cam; and means connected with said stop member for rotating the same in relation to said slide, said means comprising' a handle connected With said stop member, a member connected With said slide for holding said handle in predetermined positions, and a spring' member for holding said handle in engagement with said member.

le. In a device of the character described, the combination With a feed stop for limiting' the movement of material therein stationary in its stop position at the instant of contact of the material therewith, comprising in part a shaft with a stop finger fixed therein; of means for imparting` a reciprocatory movement thereto, said means comprising a rock member; a cam connected with said rock member; means for actuating said roch membe and an operative connection between said cam and said feed stop.

l5. In mechanism. of the character described, wherein material is fed therein and pieces successively cut therefrom, the combination therewith of means of limiting the feed movement. of said material while the cut off mechanism is witlnlrawn stationaryT in its stop position at the instant of contact of the material therewitl'i, and comprising a shaft with a stop finger fixed thereon; and means for rotating said snaft to shift the position of said finger about the axis thereof.

16. In an upsetting' machine or the like, wherein a rod is presented for an operation thereon; means for cutting off a projecting portion of said rod, whereby a blank is formed; a stop device for limiting' the position of said rod before being` cut off, actuated so as to first move into position to limit the movement of the end of the rod. then withdrawn to a point distant tnerefrom so as to clear the cut-off or other mechanism, these movements of the stop device being in a line substantially parallel with the line of feed of said rod and means for moving said stop device in a path laterally to its line movement.

17. In a device of the character described, the combination with a power reciprocating` shaft7 of a stop finger connected therewith, means between the source of power for said shaft and said shaft, for determining the length of movement of said shaft, and means associated with said shaft whereby it may be moved about its axis.

18. In a device of the character described, the combination with a power reciprocating shaft, of a stop 4finger connected therewith. means between the source of power for said shaft and said shaft. for determining the length of movement of said shaft, and means associated with said shaft whereby it may be moved about its axis in any of its positions. y

19. In mechanism of the character described wherein material is fed therein and pieces successively cut therefrom, the combination therewith of means for limiting the feed movement of said material while the cut-off mechanism is withdrawn, stationary in the stop position at the instant of contact of the material therewith, and comprising a shaft with a stop thereon, means for imparting movement tol said shaft in the direction of its length, and means for moving said shaft about its axis.

2G. In mechanism of the character described wherein, material is fed therein and pieces successively cut therefrom, the combination therewith of means for limiting the feed movement of said material while the cut-off mechanism is withdrawn, stationary in the stop position at the instant of contact of the material therewith, and comprising a shaft with a stop thereon, means for imparting' movement to said shaft in the direction of its length, and means for moving said shaft about its axis, said means for moving said shaft about its axis and parallel to its length being operative at one and the same time. I

2l. In mechanism of the character described wherein material is fed at one place, pieces successively cut therefrom and transferred to another place, the combination therewith of means for limiting the movement of said material at its feed-in line while the cut-off and transfer mechanisms are withdrawn, comprising a s aft movable in a line substantially parallel with the path of movement of said material and in timed relation with said cut-off and transfer mec'nanism, and means for actuating said shaft from `a power shaft, comprising an intermediate shaft mounted in a fixed part connected with the power shaft so that its position of rotation may be varied, and a member connected with' said intermediate shaft and during its rotation contacting with parts associated with said shaft.

In testimony whereof I have hereunto affixed my signature.

' :arci-man kLnsfrma wILcoX. 

